The other jewelers on Bundle's list ranged from major chains like DeBeers in Manhattan, where shoppers spent an average of $4,625 per visit, to boutique retailers like William Noble Rare Jewelry in Dallas, where the average receipt was $5,839.

One name that was conspicuously absent from the list was Tiffany's, which most people associate with high-priced baubles.

The reason?

While some customers walk out of the retailer with big ticket items, many leave with items that cost as little as $150, bringing down the average, Bundle said.